<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #a1{
            background-color: pink;
        }
        .b1{
            color:  green;
        }
        li,a{
            background-color: blue;
        }
        a:link{
            color: green;
        }
        a:visited{
            color: blue;
        }
        a:hover{
            color: red;
        }
        a:active{
            color: yellow;
        }
        [type="text"]{
            color: red;
        }
        [type="password"]{
            background-color: green;
        }
        body div div p{
            color: green;
        }
        body>div>div>p{
            background-color: red;
        }
    </style>
</head>
<body>
<div id="a1">刘备</div>
<div>关羽</div>
<div class="b1">张飞</div>
<p>悟空</p>
<p>八戒</p>
<p class="b1">沙僧</p>
<ul>
    <li>水煮鱼</li>
    <li>红烧肉</li>
    <li class="b1">黄焖鸡</li>
</ul>
<input type="text">
<input type="password">
<div>
    <p>p1</p>
    <div><p>p2</p></div>
    <div>
        <p>p3</p>
        <div><p>p4</p></div>
    </div>
</div>
<a href="http://www.tmooc.cn">TMOOC</a>
</body>
</html>